Fix uses AbstractMesh in distributed_lib

[vedantag17]

Issue - #21027

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Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 77.51%. Comparing base (d7c5d42) to head (17e428f).

Files with missing lines	Patch %	Lines
keras/src/backend/jax/distribution_lib.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #21031      +/-   ##
==========================================
- Coverage   82.47%   77.51%   -4.97%     
==========================================
  Files         563      563              
  Lines       53818    53816       -2     
  Branches     8347     8347              
==========================================
- Hits        44387    41716    -2671     
- Misses       7389    10140    +2751     
+ Partials     2042     1960      -82     

Flag	Coverage Δ
keras	77.36% <0.00%> (-4.93%)	⬇️
keras-jax	?
keras-numpy	58.76% <0.00%> (+<0.01%)	⬆️
keras-openvino	32.71% <0.00%> (+<0.01%)	⬆️
keras-tensorflow	64.12% <0.00%> (+<0.01%)	⬆️
keras-torch	63.84% <0.00%> (+<0.01%)	⬆️

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[hertschuh]

@vedantag17

I'm going to close this PR as it won't work as-is. Let's follow up in #21027 once we understand better how this is supposed to work.

Thanks!